The Steth-o-mate - Littmann Style - is a silicone ear tip that replaces the hard plastic tips found on most stethoscopes. This medical device accessory allows a person wearing a CIC (completely-in-canal) hearing aid to use a stethoscope along with their hearing instrument. This hearing aid accessory is available in two sizes. The Steth-o-mate - Littmann Style - is also available for standard Stethoscopes. Sold by the pair, and non-returnable.